Process for preparing superconductive substances

Details Process for preparing superconductive substances Process for preparing superconductive substances

H - Electricity

01

L

31/127, 23/228

H01L 39/12 (2006.01) C01G 3/00 (2006.01) H01L 39/24 (2006.01)

Patent

CA 1327115

A PROCESS FOR PREPARING SUPERCONDUCTIVE SUBSTANCES ABSTRACT A method is disclosed for preparation of superconductive substances, and in particular, those comprising a rare earth element, barium (Ba), copper (Cu) and oxygen, having a composition represented by the general formula: LnBa2CuO7-.delta. in which Ln represents a rare earth element and .delta. has a value of about 0 to 0.5. The method includes forming a solution containing an organic compound of a rare earth element, an organic barium compound and an organic copper compound in an organic solvent, homogenizing the resulting solution, stripping the organic solvent from the homogenized solution by evaporation to give a precipitate and pyrolyzing the precipitate to obtain the superconductive substance. The precipitate may also be formed as fibers or films prior to pyrolysis.

576747

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